@mekkaokereke it's definitely the starter packs; what made my experience here on Mastodon great from the start was that I imported lists of dozens of accounts of people I didn't know, but who were posting about topics that I was interested in.
I figured I'll get to know them eventually and can always unfollow. I effectively built my own starter pack and it was a blaze.
Mastodon started to be fun, as soon as I followed about 300 people and most new users never get to that.